Tweaktown posted ASRock delivers with an X299 mITX motherboard
A quote from the article:
Computex 2017 - ASRock delivered the only X99 motherboard to the consumer market and it seems that they have done it again with the X299 chipset. The socket will support LGA2011 mounting.ASRock delivers with an X299 mITX motherboard @ TweakTown